930 CV angle

[Racbaja]

I have brain fade tonight and for the life of me I can't remeber the stock and modified CV angles.

[partybarge_pilot]

Stock? Mod will go 32deg but your playing with fire over 28.

[Racbaja]

Thanks' I found it written down at 28deg.

[Nacho_Blanco]

How is the angle measured? 14 deg. up and 14 deg. down? Or?

[Racbaja]

You can get 28 deg of angle up and down. Measuring from your axel with a magnetic angle finder full droop and up travel can both get 28 deg.

[desertracer]

Not to jack the thread but does anybody know what the limits are for a 935 cv joint deg. wise?. We usually keep ours between 20-24 deg depending on the terrain and how long the race may be for relability. With more power and torque you want to limit the angle more right.

[ntsqd]

So just to be clear, from horizontal you are saying 14* up and 14* down for a total included angle of 28* ?
Or are you saying horiz to up and to down are 28* for a total included angle of 56* ?

[michael_loomis]

Thom ...28* up from a horizontal and 28* down. i seen them go to 30* but usually one of the four needed replacing every 2nd or 3rd race. probably pretty much the norm anyways.

[J_Lothringer]

32 !!!!!! Good luck...........on a full race preped 26-28 max................depending on how long you want them to last.....

[Project1500]

Are all cv joint flanges the same bolt pattern? What are the 930 and 935 flange bolt patterns?

[Wayne_Nosala]

A 935 will not bolt up to a 930 flange

[michael_loomis]

sorry , i forgot to mention that to run 30* they were clearanced and polished ....wait , why am i telling the secrets ?

[1992f150]

what angle would you guys reccomend on a stock 930cv in a play car?
Oh, also what if the cv joints are offset fore to aft? Could you turn the axle by hand while cycling to find out where the joints bound up?

[ntsqd]

The plane of the angle is not important, only the angle. With Cardan Joints ("U-Joints") the planes are important, buit not with CV's.
So you need to measure the angularity in the plane of the greatest angle. You could do it by measuring the angle from the horz plane and the angle from the vert plane, and then applying some math, but why bother? Mock it up w/o the boots and use the side of the CV (if you can) for one ref surface and the half shaft for the other.

[powerbox_builder]

930 CVs don't do very well stock. They are manufactured to pretty tight tolerances because when they are in the Porsche they were intended for, they don't see much angle. Where as the bus(type 2) CVs will go over 25deg. stock because buses run quite a bit of angle. So you really need to buy cages and either polish the centers or use smaller balls. I've seen stock 930s break at 22deg. with an 1835.

[RobertM]

If you really want to you can buy the CVs already polished but it will cost you a little more.